Handwriting with sky, grass, ground?

I'm going to do a bad job explaining this because I don't really know what I'm talking about, but does anyone use the handwriting system where you refer to the lines as the sky, the ground, etc? A few of my students mentioned it last year, because their kindergarten readiness teacher used it.

If you know what I'm talking about, can you tell me more about it or what it is called (if it has a name)? Does it actually work for kids?

I've never heard of it. The handwriting book I use has a little picture of a cat. The lines are head, body and tail so a capital is always a head and body letter, and 'g' would be a body and tail letter.

A teacher that I observed used giraffe, chicken, and monkey for the letters. Giraffe letters extend above the dotted line, chicken letters are too scared to extend above the dotted line or the bottom line, and monkey letters swing below the bottom line.

I know this- I have the paper listed on Sprout and I just found some cute posters a teacher had made showing how the letters are formed with it. I'm on my phone right now-I'll post the name when I get home!

It is frog street. I have a DVD that explains each leter with a short song. "Apple Annie Cathy Cook" Then Mr. Pencil comes on and explains how to write each letter using sky, fence, and ground. I like using this because it catches some of my visual and musical learners.It also goes over all words in the song that start with the particular letter you are studying. You can also buy the paper for students to practice on. I think there is also a cd.